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https://issues.apache.org/jira/browse/CALCITE-1431?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15575489#comment-15575489
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Julian Hyde commented on CALCITE-1431:
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I though "something" would be a new helper method that copies a list of types, 
making each type nullable. Would that work?

> RelDataTypeFactoryImpl.copyType() did not copy StructKind
> ---------------------------------------------------------
>
>                 Key: CALCITE-1431
>                 URL: https://issues.apache.org/jira/browse/CALCITE-1431
>             Project: Calcite
>          Issue Type: Bug
>          Components: core
>            Reporter: Maryann Xue
>            Assignee: Maryann Xue
>            Priority: Minor
>              Labels: phoenix
>             Fix For: 1.11.0
>
>
> Now that StructKind has been introduced as an attribute of RelDataType by 
> CALCITE-1208, when copying a RecordType, we should also copy its StructKind.
> This would be an issue in view expansion, in which columns could not be 
> resolved from a view the same way as they would from its original table. 



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